Improvement in sled-brakes



BOLTON & HOYT.

I Sled Brake.

Patented Jan. 12, 1869.

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SI MEON R. BOLTON AND FRANCIS HOYT, OF PRESCOTT, WISCONSIN.

Letters Patent No. 85,785, dated Janua/ry 12, 1869.

IMPROVEMENT IN SLED-BRAKES.

The Schedule referred to in these Letters Patent and making part of the name.

To all whom it may con-ce'm Be it known that we, Summon R.BOLTON and FRANCIS HOYT, of Prescott, in the county of Pierce, and State of Wisconsin, have invented a new and valuable Improvement in Sled-Brakes; and we do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being hadto the annexed drawings, making a part of this specification, and 'to the letters and figures of reference marked thereon.

Figure 1 of the drawings is a representation of a plan view of our sled-brake inverted.

Figure 2 is a side view, and

Figure 3' is a sectional view thereof.

Our invention relates to that class of devices designedto neutralize the force of gravitation upon a sled when moving down-hill, the object being to attach such means to the harness of the team, as will secure the desired object, without the aid of the ordinary handbrake.

The letter a of the drawings represents a guard attached to the side of thesled-runner, and letter I) is a brace or brake working therein, pivoted to the arm 0, as shown. p 3

The arm 0 is a part of the tumbling-rod d, bent outward, at a suitable distance from the end thereof.

" The tumbling-rod (Z is constructed and adjusted in the form and manner shown. It is attached to the lower side of the sled-beamin-staples, and extends from side to side of the sled with an arm, 0, on each end.

At the point c, this rod is bent outward, as repre* sented, to form a loopthat shall serve the purposes of a lever, for the devices hereinafter mentioned.

The letters fare coiled springs, adjusted as shown, and are designed to regulate the movements of said tumbling-rod. V

The letter g is a rod extending from c to the rod 71., with which it is united in the form of a. hinge, or hook and eye, at the point i.

The rod It extends from the point of its union with rod g to the lower end of the neck-yoke lever next mentioned, passing through staples on the lower side of the sled-tongue.

The neck-yoke lever, marked it on the drawings, constitutes an important part of our device. The form of its construction, and the mode of its adjustment to the sled-tongue are well shown on the drawings. It is joined with the front end of rod h, at its lower end, while its upper end is arranged to receive the ring of the neck-yoke. e

The connection with the sled-tongue-is formed by I passing said tongue through the opening 0, and fastening it therein by means of a pin,-that passes through said tongue from top to bottom, and pivoting it with the lever at the point r.

Our device operates as follows, namely:

When the sled, in passing down-hill, presses against the horses, and they begin to hold back, the upper end of the neck-yoke lever '10 is drawn backward. The lower end is pushed forward then by moving forward the rod h, and actuating all the devices connected therewith. The result is, that the braces on are forced down- Asled-brake, having braces b, arm, 0, rods 01, g, and

h, springs f, and guards a, in combination with the neckyoke' lever k, when constructed and arranged substantially as herein specified.

In testimony that we claim the above, we,have here- I unto subscribed our names, in the presence of two witnesses.

- SIMEON R. BOLTON.

. FRANCIS HOYT.

Witnesses: WEL. VANNATTA, P. V. WISE. 

